former president bill clinton posting this picture. a hand shake and the words, i will never forget my friend, madi madiba. and on facebook, president george w. bush, president mandela was one of the forces for freedom and equality of our time. he bore his burdens with dignity and grace. and our world is better off because of his example. it's the type of worldwide experience that draws young and old, black and white, to share feelings. charlize theron. my thoughts and love go out to the mandela family. rest in peace, madiba. you will be missed. but your impact on this world will last forever. spike lee posted this picture with a simple message. and then, there's this one from nasa. intergalactic reaction from the space shuttle, posting a picture of mandela's beloved south africa. and the crowds continue to gather in front of mandela's home, perhaps the day's most poignant message from his own twitter account. death is something inevitable. when a man has done what he considers to be his duty to his people and his country, he can rest